Search for leptonic decays of W' bosons in pp collisions at sqrt(s)=7 TeV

CMS Collaboration;Quertenmont, Loïc;Chatrchyan, Serguei;Basegmez, Suzan;Bethani, Agni;et.al.
(2012) Journal of High Energy Physics — Vol. 1208, p. 23 (2012)

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Authors
  • CMS CollaborationCERN
    Author
  • Author
  • Chatrchyan, SergueiYerevan Physics Institute, Yerevan, Armenia
    Author
  • Basegmez, SuzanUCLouvain
    Author
  • Author
  • Ceard, LudivineUCLouvain
    Author
  • Author
  • Du Pree, TristanUCLouvain
    Author
  • Favart, DenisUCLouvain
    Author
  • Forthomme, LaurentUCLouvain
    Author
  • Author
  • Hollar, JonathanUCLouvain
    Author
  • Author
  • Liao, JunhuiUCLouvain
    Author
  • Militaru, OtiliaUCLouvain
    Author
  • Nuttens, ClaudeUCLouvain
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  • Pagano, DavideUCLouvain
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  • Pin, ArnaudUCLouvain
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  • Piotrzkowski, KrzysztofUCLouvain
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  • Schul, NicolasUCLouvain
    Author
  • Bethani, Agniorcid-logoUCLouvain
    Author
  • et. al.
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Abstract
A search for a new heavy gauge boson W' decaying to an electron or muon, plus a low mass neutrino, is presented. This study uses data corresponding to an integrated luminosity of 5.0 inverse femtobarns, collected using the CMS detector in pp collisions at a centre-of-mass energy of 7 TeV at the LHC. Events containing a single electron or muon and missing transverse momentum are analyzed. No significant excess of events above the standard model expectation is found in the transverse mass distribution of the lepton-neutrino system, and upper limits for cross sections above different transverse mass thresholds are presented. Mass exclusion limits at 95% CL for a range of W' models are determined, including a limit of 2.5 TeV for right-handed W' bosons with standard-model-like couplings and limits of 2.43--2.63 TeV for left-handed W' bosons, taking into account their interference with the standard model W boson. Exclusion limits have also been set on Kaluza--Klein W[KK] states in the framework of split universal extra dimensions.
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Citations

CMS Collaboration, Quertenmont, L., Chatrchyan, S., Basegmez, S., Bruno, G., Ceard, L., Delaere, C., Du Pree, T., Favart, D., Forthomme, L., Giammanco, A., Hollar, J., Lemaitre, V., Liao, J., Militaru, O., Nuttens, C., Pagano, D., Pin, A., Piotrzkowski, K., et al. (2012). Search for leptonic decays of W’ bosons in pp collisions at sqrt(s)=7 TeV. Journal of High Energy Physics, 1208, 23. https://doi.org/10.1007/JHEP08(2012)023 (Original work published 2012)